Bulletin of the American Physical Society
APS March Meeting 2022
Volume 67, Number 3
Monday–Friday, March 14–18, 2022; Chicago
Session G28: Quantum SimulationInvited Live Streamed
|
Hide Abstracts |
Sponsoring Units: DAMOP Chair: Peter Zoller, Univ of Innsbruck Room: McCormick Place W-190A |
Tuesday, March 15, 2022 11:30AM - 12:06PM |
G28.00001: Experimental tests of generalized hydrodynamics Invited Speaker: David S. S Weiss I will describe a series of experiments with a bundle of 1D gases, consisting of ultra-cold atoms in a 2D optical lattice. We take these gases out of equilibrium by suddenly changing the axial trap potential depth by as much as a factor of 100. Generalized hydrodynamics (GHD) describes the out-of-equilibrium behavior of nearly integrable systems, like these 1D gases. GHD is a hydrodynamic theory that assumes local equilibrium, while taking into account the many contraints associated with the distribution of rapidities, which are the momenta of the quasiparticles that emerge from mutual interactions among the particles. We have developed a way to measure the evolving distribution of rapidities, making this abstract concept a physical observable. From strong to intermediate coupling, with as few as 10 and a many as 150 particles per 1D gas, and over several oscillation cycles, we find that GHD describes the experiments very accurately. We have thus validated GHD's assumptions for real experimental conditions. I will also mention experiments that probe the limits of GHD by using wavefunction quenches that compromise the local equilibrium assumption. |
Tuesday, March 15, 2022 12:06PM - 12:42PM |
G28.00002: Topological phases with Rydberg atoms Invited Speaker: Hans Peter Buchler The concept of topological phases is a powerful framework for characterizing ground states of quantum many-body systems that goes beyond the paradigm of symmetry breaking. Topological phases can appear in condensed-matter systems naturally, whereas the implementation and study of such quantum many-body ground states in artificial matter require careful engineering. In this talk, we review different approaches for the realization of topological phases with Rydberg atoms. Starting with the recent experimental observation of a symmetry protected topological phase, we extend the approaches into two dimensions on fractional bosonic Chern insulators. The required experimental setup is based on atoms trapped in an array of optical tweezers and excited into Rydberg levels, which gives rise to hard-core bosons with an effective hopping generated by dipolar exchange interaction. |
Tuesday, March 15, 2022 12:42PM - 1:18PM |
G28.00003: TBD Invited Speaker: Rainer Blatt
|
Tuesday, March 15, 2022 1:18PM - 1:54PM |
G28.00004: Quantum Simullation with Rydberg Polaritons Invited Speaker: Jon Simon
|
Tuesday, March 15, 2022 1:54PM - 2:30PM |
G28.00005: Quantum Simulation with Molecules Invited Speaker: Jun Ye
|
Follow Us |
Engage
Become an APS Member |
My APS
Renew Membership |
Information for |
About APSThe American Physical Society (APS) is a non-profit membership organization working to advance the knowledge of physics. |
© 2024 American Physical Society
| All rights reserved | Terms of Use
| Contact Us
Headquarters
1 Physics Ellipse, College Park, MD 20740-3844
(301) 209-3200
Editorial Office
100 Motor Pkwy, Suite 110, Hauppauge, NY 11788
(631) 591-4000
Office of Public Affairs
529 14th St NW, Suite 1050, Washington, D.C. 20045-2001
(202) 662-8700